Updated (11:07 p.m.): Nine patients are in treatment in the Intensive Care Unit at the Scott & White Memorial Hospital in Temple, and of those nine, three are in critical condition, according to Deontrea Jones, a hospital spokeswoman.

The soldier, who was identified byU.S. Rep. Michael McCaul, R-Austin, as 34 year-old Ivan Lopez, suffered from “unresolved” mental and behavior health issues and was in treatment, according to Lt. Gen. Mark Milley. Fort Hood officials said they would not confrm Lopez was the shooter. He died of self-inflicted injuries after a military police officer approached him.

Milley said though the shooter had not been formally diagnosed, he was undergoing the diagnosis process for post-traumatic stress disorder. The shooter served for four months in Iraq in 2011 and had a wife and children who lived near the base.

“That’s a lengthy diagnosis,” Milley said.

Updated (9:34 p.m.): U.S. Rep. Michael McCaul, R-Texas, identified the shooter at Fort Hood as Ivan Lopez, a soldier at the base. McCaul is the chairman of the House Homeland Security Committee.

According to officials on the base, four people, including the shooter, have died. Several others are being treated for gunshot wounds at local hospitals.

Ben Armstrong, director of student veteran services, said many veterans at UT have close connections with Fort Hood, though there is no way of tracking an exact number.

“Because it’s one of the largest bases in the U.S. army, we have a large number of student veterans on campus that either served on Fort Hood or have had experiences at Fort Hood,” Armstrong said.

Armstrong said he and other members of student veteran services are monitoring the situation closely.

“The immediate thing we’re worried about is the families and soldiers that are on base,” Armstrong said. “Right now I think that all we can do is hope and pray for the people that are on base, and we can go from there, once we figure out what the realities of the situation are.”

Updated (8:22 p.m.): TEMPLE, TX — Scott and White Memorial Hospital, 30 miles from Fort Hood, is currently treating four injured people, and two additional people are en route to the hospital by way of a medical helicopter, according to chief medical official Glen Couchman.

According to Couchman, all of the injured people at the hospital are suffering from gunshot wounds ranging in severity, on victims’ chests, abdomens and extremities, and one person’s neck, Couchman said.

The hospital, which is in the process of contacting victims’ families, doesn’t expect to admit more patients in connection with the shooting, Couchman said. Other victims are being treated at local hospitals including the Carl R. Darnall Army Medical Center.

“This is another sad day for Central Texas,” Couchman said at a press conference Wednesday.

The Heart of Texas chapter of the Red Cross will collaborate with the city of Killeen to open a shelter for people who live on-base but cannot enter the base because of the lockdown, according to a representative of the Red Cross’ Service to the Armed Forces.

Updated (7:31 p.m.): At a press conference in Chicago, President Barack Obama expressed grief and frustration that another shooting happened on a military base.

“Our thoughts and prayers are with the entire community and we’re going to do everything we can to make sure Fort Hood has what it needs,” Obama said. “Folks there sacrifice so much on behalf of our freedom...they serve with valor and distinction. When they’re at their home base, they need to feel safe. We don’t know what happened tonight, but obviously that sense of safety has been broken again.”

Sociology sophomore Sara Tracy, who attended UT as a freshman and will be returning in the fall, lives in Killeen just a few miles from the Fort Hood base and has family and friends who work there.

Tracy said she still has vivid memories from the 2009 shooting, which happened when she was a junior in high school.

“The first time this happened, we couldn’t leave school,” Tracy said. “It was just scary, because a lot of my friends couldn’t get ahold of their parents because the cell service is terrible when a lot of people use their phones. People were worried because they have parents who work there, and it’s just like the same thing all over again.”

Tracy said the whole community is affected by the shootings.

“It’s emotional — earlier I just cried,” Tracy said. “You just don’t expect it to happen again...you want everybody to be safe.”

Veteran John Daywalt, a government junior from Killeen whose father still works at the Fort Hood base, said another shooting on the base was not something he expected could happen.

“Hearing that it happened a second time is even more devastating,” Daywalt said. “I just hope that the families are all OK, and they get the proper respect that they deserve. It just kind of hits you by surprise.”

Daywalt, who served as a paratrooper in Afghanistan, said gun regulation on army bases is more stringent than people realize.

“I think there’s definitely a misconception that everyone on base is always carrying a weapon,” Daywalt said. “You think that just because they’re in the military, they’re always carrying a weapon. In reality, you are not allowed to touch a weapon without specific orders...so it’s not like if there was something like that you would be able to just respond immediately.”

Updated (6:50 p.m.): At least 18 injured people have been admitted to the Carl R. Darnall Army Medical Center in connection with the shooting, according to a representative from the Admissions and Dispositions department at the center. The representative said some of the 18 people have already been transferred to Scott and White Memorial Hospital in Temple, TX.

Updated (6:34 p.m.): The shooter may be dead, but this is unconfirmed, according to a report released by Fort Hood’s Directorate of Emergency Services. Fort Hood is still on lockdown.

The Carl R. Darnall Army Medical Center and other local hospitals are treating injured people.

In response to an independent review on the 2009 Fort Hood shooting, Secretary of Defense Robert Gates ordered the military in 2010 to better identify potential workplace violence, improve information sharing between agencies and and review emergency response capabilities at installations.

Original story (5:44 p.m.): There is at least one active shooter at the military post at Fort Hood, Texas, according to a press release issued by officers at the post. Multiple injuries have been reported and emergency crews are on the scene.

The provost marshal’s office said the shooter is still active.

In 2009, Nidal Malik Hasan, a U.S. Army major and psychiatrist, shot and killed 13 people and injured more than 30 others at Fort Hood.

For live updates from Fort Hood, follow reporters Julia Brouillette (@juliakbrou) and Kate Dannenmaier (@kjdannen), as well as the multimedia team members Charlie Pearce (@charliepearce90), Dan Resler (@danrezler) and Carlo Nasisse (@carlonasisse).